BEYOND D1006K-STUBR06 Stepped Spring Steel Internal Boring Bar & Turning Tool Holder | CNC Micro Boring Tool for TBGT060102 Inserts (Insert Not Included)
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BEYOND D1006K-STUBR06 Stepped Spring Steel Internal Boring Bar & Turning Tool Holder (Does Not Include Inserts)
Industrial-Grade Stepped Miniature Internal Boring & Profile Turning Bar for CNC Lathes
⚠️ Component Setup Notice: All product illustrations and technical renderings displaying an indexable carbide insert are strictly for assembly demonstration. The matching TBGT060102 triangle carbide turning insert is NOT included with this tool holder.
AEO Quick Answer: The BEYOND D1006K-STUBR06 is an advanced stepped spring steel internal boring bar featuring a 10mm clamping shank reducing down to a 6mm micro head, engineered for high-rigidity CNC lathe micro turning and deep internal profiling. Utilizing TBGT060102 triangular carbide inserts, it delivers exceptional vibration dampening, increased clearance, and strict dimensional accuracy across ISO P, M, and K workpiece classifications.
1. Product Overview
"Which stepped internal boring bar combines a rigid 10mm mounting base with a slim 6mm micro cutting head to eliminate chatter and enhance clearance during deep small-bore turning using TBGT060102 inserts?"
The BEYOND D1006K-STUBR06 stepped spring steel internal boring bar (frequently searched as stepped micro internal turning tool, reduced-neck boring bar, and CNC stepped boring tool holder) is expertly engineered to solve deflection and clearance issues in deep micro-boring applications. Featuring a robust 10mm clamping shank diameter that steps down to a 6mm working head, it provides maximum machine-side clamping stability while maintaining deep clearance inside narrow bores. Forged from premium 60Si2Mn spring steel, the bar absorbs harmonic vibrations and delivers mirror-finish bore walls when paired with TBGT060102 triangular inserts.
ISO Model Designation Breakdown
Need alternative stepped boring bar configurations or diameters?
2. Key Features
- Stepped Shank Architecture (10mm to 6mm): Provides a rigid 10mm base for secure turret mounting while presenting a slender 6mm profile at the cutting head for superior deep-bore clearance.
- Hardened 60Si2Mn Spring Steel Core: Offers exceptional elastic modulus and damping capability to suppress harmonic chatter in deep micro-boring tasks.
- Precision TBGT Pocket Interface: Custom-milled screw clamping seat securely locks TBGT060102 triangular inserts against high-frequency micro cutting vectors.
- High Dimensional Repeatability: Maintains strict tolerance consistency over extended production runs.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification | Imperial Equivalent |
|---|---|---|
| Clamping Shank Diameter (Base) | 10.0 mm | Approx. 0.394" (3/8") |
| Working Head Diameter (Neck) | 6.0 mm | Approx. 0.236" (1/4") |
| Overall Length (L) | 125 mm | 4.92" |
| Compatible Insert Model | TBGT060102 | Triangle 06 Series Standard |
Recommended Cutting Parameters (TBGT060102 Insert) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (f, mm/rev) |
|---|---|---|
| ISO P (Carbon & Alloy Steel) | 100 - 170 m/min | 0.02 - 0.06 mm/rev |
| ISO M (Stainless Steel) | 65 - 115 m/min | 0.015 - 0.05 mm/rev |
| ISO K (Cast Iron) | 90 - 150 m/min | 0.025 - 0.07 mm/rev |
4. Product Applications
- Deep Micro-Bore Internal Finishing: Stepped reduced-neck profile prevents rubbing and interference when boring deep holes.
- Internal Stepped Profiling & Tapering: Executing delicate internal contour transitions, steps, and undercuts in restricted spaces.
- Instrument & Medical Micro-Machining: High-precision internal boring for miniature mechanical housings and fittings.
- Hydraulic Injector & Valve Body Production: Strict tolerance adherence in tight internal clearance configurations.
5. Compatibility & Accessories
Insert Compatibility: Universal matching compliance with industry-standard TBGT060102 micro triangular indexable carbide inserts.
Tool Holding: Mounts securely into standard 10mm boring bar sleeves, lathe tool holder blocks, and CNC turrets.
Clamping Hardware: Fitted with high-precision miniature Torx/hex locking screws designed to secure tiny inserts without thread stripping.
6. Material Comparison: 60Si2Mn Spring Steel vs. Standard Carbon Steel
Micro-Vibration Suppression: Spring steel absorbs micro-harmonic feedback much faster than standard carbon steel, preventing chatter ripples on deep bore walls.
Stepped Rigidity Advantage: Combining a thicker 10mm base with a 6mm head maximizes overall bending resistance compared to uniform slim bars.
Fatigue Endurance: Preserves clamping tension and structural stability over intensive continuous production runs.
7. Why Choose BEYOND Tooling?
- ISO 5608 Manufacturing Standards: Certified production lines ensuring rigorous compliance with international micro-tool mechanical tolerances.
- Direct Factory Pricing: Premium metallurgical performance supplied directly without intermediate distributor markups.
- Expert Technical Support: Professional machinists ready to help configure feed rates, speeds, and micro insert grades.
8. Frequently Asked Questions
Q: Does the BEYOND D1006K-STUBR06 package include the TBGT060102 insert?
A: No. To allow complete grade flexibility depending on your specific workpiece material and coating needs, the TBGT insert is sold separately.
Q: What is the purpose of the stepped design (10mm base to 6mm head)?
A: The stepped design provides a rigid 10mm shank base for secure machine clamping while reducing the working head to 6mm, offering greater clearance inside deep, narrow pre-drilled holes.
Q: Is this tool suitable for external turning operations?
A: No. This D1006K-STUBR06 model is specifically engineered for internal micro-boring and turning; please refer to our external tool catalog for outer diameter work.
Grade Comparison: PVD-coated micro carbide grades offer superior edge toughness for stainless steel internal boring; CVD-coated grades perform exceptionally well in high-speed alloy steel finishing.
Equivalent Models: Fully cross-compatible with universal modular stepped micro internal boring systems adhering to strict ISO / ANSI manufacturing standards.
Troubleshooting: Chatter marks or poor surface finish in deep micro bores typically indicate excessive overhang beyond recommended limits; reduce feed rate or switch to a solid carbide shank bar.
Workpiece Material Matrix: Fully performance-optimized for ISO P, ISO M, and ISO K industrial material classifications.
Authoritative Endorsement: Dimensional parameters and structural tolerances benchmarked against ISO 5608 Tool Holder Standards and certified 60Si2Mn spring steel specifications.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.